Decorative cover of lock



FIG. 1 is a perspective view of a decorative cover of lock showing our design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The rear view is not part of the claimed design. The broken line showing is for illustrative purposes only, and forms no part of the claimed design. The shade lines on the surface portions indicate contour and not surface decoration. 

CLAIM The ornamental design for a decorative cover of lock, as shown and described. 